:root {
    /* Base Green Theme (names kept, values switched to BLUE palette) */
    --primary-green: #0d6efd; /* primary blue */
    --light-green: #66a6ff; /* light blue */
    --dark-green: #0a58ca; /* dark blue */
    --mint-green: #b6d4fe; /* soft blue */
    --pale-green: #eef5ff; /* very light blue */
    /* Button Colors (names kept) */
    --btn-primary-start: #0d6efd;
    --btn-primary-end: #66a6ff;
    --btn-primary-hover-start: #0b5ed7;
    --btn-primary-hover-end: #0d6efd;
    --btn-primary-shadow: rgba(13, 110, 253, 0.30);
    --btn-danger-start: #dc3545; /* leave red variants as-is */
    --btn-danger-end: #ff6b6b;
    --btn-danger-hover-start: #bb2d3b;
    --btn-danger-hover-end: #ff4d4d;
    --btn-danger-shadow: rgba(220, 53, 69, 0.30);
    /* Recast "info" into a cooler blue gradient */
    --btn-info-start: #6ea8fe;
    --btn-info-end: #b6d4fe;
    --btn-info-hover-start: #0d6efd;
    --btn-info-hover-end: #6ea8fe;
    --btn-info-shadow: rgba(13, 110, 253, 0.25);
    /* Table Colors */
    --table-border: #0d6efd;
    --table-header-bg-start: #0d6efd;
    --table-header-bg-end: #66a6ff;
    --table-header-border-bottom: #0b5ed7;
    --table-row-odd-bg: #e9f2ff;
    --table-row-hover-bg: #f2f7ff;
}

body {
    background: linear-gradient(135deg, var(--pale-green) 0%, #dae7ff 50%, var(--mint-green) 100%);
    min-height: 100vh;
    font-family: 'Arial', sans-serif;
}

.navbar {
    background: linear-gradient(90deg, var(--primary-green) 0%, var(--light-green) 100%);
    box-shadow: 0 4px 15px rgba(13, 110, 253, 0.30);
    padding: 1rem 0;
}

.navbar-brand {
    font-weight: bold;
    font-size: 1.8rem;
    color: white !important;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.navbar-nav .nav-link {
    color: white !important;
    font-weight: 500;
    margin: 0 0.5rem;
    padding: 0.5rem 1rem !important;
    border-radius: 25px;
    transition: all 0.3s ease;
}

    .navbar-nav .nav-link:hover {
        background: rgba(255, 255, 255, 0.2);
        transform: translateY(-2px);
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    }

    .navbar-nav .nav-link.active {
        background: rgba(255, 255, 255, 0.3);
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
    }

.welcome-section {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(238, 245, 255, 0.9) 100%);
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(13, 110, 253, 0.20);
    padding: 4rem 3rem;
    margin: 3rem auto;
    max-width: 800px;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(13, 110, 253, 0.10);
}

.welcome-title {
    background: linear-gradient(135deg, var(--primary-green), var(--dark-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-size: 3.5rem;
    font-weight: bold;
    margin-bottom: 1.5rem;
    text-align: center;
}

.welcome-subtitle {
    color: var(--dark-green);
    font-size: 1.3rem;
    text-align: center;
    margin-bottom: 2rem;
    opacity: 0.8;
}

.feature-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.8) 0%, rgba(182, 212, 254, 0.30) 100%);
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid rgba(13, 110, 253, 0.20);
}

    .feature-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 15px 35px rgba(13, 110, 253, 0.30);
        background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(182, 212, 254, 0.40) 100%);
    }

.feature-icon {
    font-size: 3rem;
    color: var(--primary-green);
    margin-bottom: 1rem;
}

.feature-title {
    color: var(--dark-green);
    font-size: 1.5rem;
    font-weight: bold;
    margin-bottom: 1rem;
}

.feature-text {
    color: var(--dark-green);
    opacity: 0.8;
}

.navbar-toggler {
    border: none;
    padding: 4px 8px;
}

    .navbar-toggler:focus {
        box-shadow: none;
    }

.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 1%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

@media (max-width: 768px) {
    .welcome-title {
        font-size: 2.5rem;
    }

    .welcome-section {
        margin: 2rem 1rem;
        padding: 2rem 1.5rem;
    }
}

/* Custom buttons */
.btn-primary {
    background: linear-gradient(135deg, var(--btn-primary-start), var(--btn-primary-end));
    border: none;
    color: #fff;
    border-radius: 50px;
    padding: 0.6rem 1.5rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

    .btn-primary:hover {
        background: linear-gradient(135deg, var(--btn-primary-hover-start), var(--btn-primary-hover-end));
        box-shadow: 0 0.5rem 1rem var(--btn-primary-shadow);
    }

.btn-danger {
    background: linear-gradient(135deg, var(--btn-danger-start), var(--btn-danger-end));
    border: none;
    color: #fff;
    border-radius: 50px;
    padding: 0.6rem 1.5rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

    .btn-danger:hover {
        background: linear-gradient(135deg, var(--btn-danger-hover-start), var(--btn-danger-hover-end));
        box-shadow: 0 0.5rem 1rem var(--btn-danger-shadow);
    }

.btn-info {
    background: linear-gradient(135deg, var(--btn-info-start), var(--btn-info-end));
    border: none;
    color: #fff;
    border-radius: 50px;
    padding: 0.6rem 1.5rem;
    font-weight: 600;
    transition: all 0.3s ease;
}

    .btn-info:hover {
        background: linear-gradient(135deg, var(--btn-info-hover-start), var(--btn-info-hover-end));
        box-shadow: 0 0.5rem 1rem var(--btn-info-shadow);
    }

/* table customization */
.table {
    border-color: var(--table-border);
}

table.table thead tr th {
    background: linear-gradient(135deg, var(--table-header-bg-start), var(--table-header-bg-end)) !important;
    color: #fff !important;
    border-bottom: 2px solid var(--table-header-border-bottom);
}

table.table-striped tbody tr:nth-of-type(odd) td {
    background-color: var(--table-row-odd-bg) !important;
}

table.table-hover tbody tr:hover td {
    background-color: var(--table-row-hover-bg) !important;
}

.table-bordered th,
.table-bordered td {
    border: 1px solid var(--table-border);
}

.table th {
    font-weight: 600;
}

.table thead th:first-child {
    border-top-left-radius: 0.5rem;
}

.table thead th:last-child {
    border-top-right-radius: 0.5rem;
}

/* =========================================================
   Blue-overrides: replace all Bootstrap "success" (green)
   with blue sitewide (buttons, badges, alerts, text, etc.)
   ========================================================= */
:root {
    --bs-success: #0d6efd;
    --bs-success-rgb: 13, 110, 253;
    --bs-success-text-emphasis: #084298;
    --bs-success-bg-subtle: #e7f1ff;
    --bs-success-border-subtle: #b6d4fe;
}

.btn-success {
    color: #fff;
    background-color: var(--bs-success);
    border-color: var(--bs-success);
}

    .btn-success:hover {
        color: #fff;
        background-color: #0b5ed7;
        border-color: #0a58ca;
    }

    .btn-success:focus,
    .btn-success.focus {
        color: #fff;
        background-color: #0b5ed7;
        border-color: #0a58ca;
        box-shadow: 0 0 0 .25rem rgba(var(--bs-success-rgb), .25);
    }

    .btn-success:active,
    .btn-success.active,
    .show > .btn-success.dropdown-toggle {
        color: #fff;
        background-color: #0a58ca;
        border-color: #0a53be;
    }

/* Outline success */
.btn-outline-success {
    color: var(--bs-success);
    border-color: var(--bs-success);
}

    .btn-outline-success:hover {
        color: #fff;
        background-color: var(--bs-success);
        border-color: var(--bs-success);
    }

    .btn-outline-success:focus {
        box-shadow: 0 0 0 .25rem rgba(var(--bs-success-rgb), .25);
    }

    .btn-outline-success:active,
    .btn-outline-success.active,
    .show > .btn-outline-success.dropdown-toggle {
        color: #fff;
        background-color: #0a58ca;
        border-color: #0a53be;
    }

/* Success variants */
.bg-success {
    background-color: var(--bs-success) !important;
}

.text-success {
    color: var(--bs-success) !important;
}

.border-success {
    border-color: var(--bs-success) !important;
}

.badge.bg-success,
.badge.text-bg-success {
    background-color: var(--bs-success) !important;
}

.alert-success {
    color: var(--bs-success-text-emphasis);
    background-color: var(--bs-success-bg-subtle);
    border-color: var(--bs-success-border-subtle);
}

.progress-bar.bg-success {
    background-color: var(--bs-success) !important;
}

.list-group-item-success {
    color: var(--bs-success-text-emphasis);
    background-color: var(--bs-success-bg-subtle);
}

    .list-group-item-success.list-group-item-action.active {
        color: #fff;
        background-color: var(--bs-success);
        border-color: var(--bs-success);
    }

.page-link.text-success {
    color: var(--bs-success) !important;
}

/* Optional site gradients in blue */
.navbar-gradient {
    background: linear-gradient(90deg, #0d6efd, #66a6ff);
}

.hero-gradient {
    background: linear-gradient(180deg, #eef5ff, #ffffff);
}